EVPN Multicast Synchronization Enhancement
draft-liu-bess-evpn-mcast-synch-enhance-00

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Last updated 2018-06-09
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BESS Working Group                                           Yisong Liu
Internet Draft                                          Donald Eastlake
Intended status: Standards Track                    Huawei Technologies
Expires: December 10, 2018                                June 10, 2018

                EVPN Multicast Synchronization Enhancement
                draft-liu-bess-evpn-mcast-synch-enhance-00

Status of this Memo

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Abstract

Liu, et al.              Expires December, 2018                [Page 1]
Internet-Draft   EVPN Multicast Synchronization Enhancement   June 2018

Ethernet Virtual Private Network (EVPN, RFC7432) solutions is becoming
prevalent in Data Centers, Data Center Interconnect (DCI) and Service
Provider VPN applications. In the scenario of multi-homing from a CE to
multiple PEs with links used in a single-active or all-active
redundancy mode, IGMP & MLD Join/Leave and PIM Join/RPT-Prune
synchronization procedures have been provided. This document specifies
an enhancement for IGMP/PIM signaling synchronization when using
different Ethernet tag encapsulation mode.

Table of Contents

   1. Introduction ................................................ 2
      1.1. Requirements Language................................... 3
      1.2. Terminology ............................................ 3
   2. Enhancement of IGMP/PIM Synchronization...................... 3
   3. BGP Encoding Improvement..................................... 4
      3.1. IGMP/PIM Join Synch Route............................... 4
      3.2. IGMP Leave Synch Route.................................. 5
      3.3. PIM RPT-Prune Synch Route............................... 7
   4. Security Considerations...................................... 8
   5. IANA Considerations ......................................... 8
   6. References .................................................. 8
      6.1. Normative References.................................... 8
      6.2. Informative References.................................. 8
   7. Acknowledgments ............................................. 8

1. Introduction

   Ethernet Virtual Private Network (EVPN [RFC7432]) solutions are
   becoming prevalent in Data Centers, Data Center Interconnect (DCI)
   and Service Provider VPN applications. In the scenario of multi-
   homing from a CE to multiple PEs with links used in a single-active
   or all-active redundancy mode, [EVPN-IGMP-MLD-PROXY] for IGMP&MLD
   Join/Leave and [EVPN-PIM-PROXY] for PIM Join/RPT-Prune
   synchronization procedures have been provided.

   However, there may be multiple ways for a CE to connect to PE,
   including ethernet tag termination and Q-in-Q termination. When
   IGMP/PIM synch routes are transmitted from one PE to another PE both
   multi-homing to the same CE, the appropriate VLAN tags should be
   included in the routes. This document specifies an improvement in
   IGMP/PIM synchronization process.

Liu, et al.              Expires December, 2018                [Page 2]
Internet-Draft   EVPN Multicast Synchronization Enhancement   June 2018

    1.1. Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.
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